These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / sound / soc / codecs / gtm601.c

diff --git a/kernel/sound/soc/codecs/gtm601.c b/kernel/sound/soc/codecs/gtm601.c
new file mode 100644 (file)
index 0000000..0b80052
--- /dev/null
+++ b/kernel/sound/soc/codecs/gtm601.c
@@ -0,0 +1,95 @@
+/*
+ * This is a simple driver for the GTM601 Voice PCM interface
+ *
+ * Copyright (C) 2015 Goldelico GmbH
+ *
+ * Author: Marek Belisko <marek@goldelico.com>
+ *
+ * Based on wm8727.c driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = {
+       SND_SOC_DAPM_OUTPUT("AOUT"),
+       SND_SOC_DAPM_INPUT("AIN"),
+};
+
+static const struct snd_soc_dapm_route gtm601_dapm_routes[] = {
+       { "AOUT", NULL, "Playback" },
+       { "Capture", NULL, "AIN" },
+};
+
+static struct snd_soc_dai_driver gtm601_dai = {
+       .name = "gtm601",
+       .playback = {
+               .stream_name = "Playback",
+               .channels_min = 1,
+               .channels_max = 1,
+               .rates = SNDRV_PCM_RATE_8000,
+               .formats = SNDRV_PCM_FMTBIT_S16_LE,
+               },
+       .capture = {
+               .stream_name = "Capture",
+               .channels_min = 1,
+               .channels_max = 1,
+               .rates = SNDRV_PCM_RATE_8000,
+               .formats = SNDRV_PCM_FMTBIT_S16_LE,
+       },
+};
+
+static const struct snd_soc_codec_driver soc_codec_dev_gtm601 = {
+       .dapm_widgets = gtm601_dapm_widgets,
+       .num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets),
+       .dapm_routes = gtm601_dapm_routes,
+       .num_dapm_routes = ARRAY_SIZE(gtm601_dapm_routes),
+};
+
+static int gtm601_platform_probe(struct platform_device *pdev)
+{
+       return snd_soc_register_codec(&pdev->dev,
+                       &soc_codec_dev_gtm601, &gtm601_dai, 1);
+}
+
+static int gtm601_platform_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_codec(&pdev->dev);
+       return 0;
+}
+
+#if defined(CONFIG_OF)
+static const struct of_device_id gtm601_codec_of_match[] = {
+       { .compatible = "option,gtm601", },
+       {},
+};
+MODULE_DEVICE_TABLE(of, gtm601_codec_of_match);
+#endif
+
+static struct platform_driver gtm601_codec_driver = {
+       .driver = {
+               .name = "gtm601",
+               .of_match_table = of_match_ptr(gtm601_codec_of_match),
+       },
+       .probe = gtm601_platform_probe,
+       .remove = gtm601_platform_remove,
+};
+
+module_platform_driver(gtm601_codec_driver);
+
+MODULE_DESCRIPTION("ASoC gtm601 driver");
+MODULE_AUTHOR("Marek Belisko <marek@goldelico.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:gtm601");